Can't figure out how to use the parameter MaxReceivedMessageSize in WebService

Question

I need to add a parameter to a webservice, but it won't let me.
This is my App.Config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
    </startup>
    <system.serviceModel>
        <bindings>
            <customBinding>
                <binding name="tripAndTimeReportingServiceSoapBinding">
                    <mtomMessageEncoding messageVersion="Soap12" />
                    <httpsTransport />
                </binding>
            </customBinding>
        </bindings>
        <client>
            <endpoint address="https://soap.webfleet.com/v1.53/tripAndTimeReportingService"
                binding="customBinding" bindingConfiguration="tripAndTimeReportingServiceSoapBinding"
                contract="TripAndTimeReportingService.tripAndTimeReporting"
                name="tripAndTimeReportingPort" />
        </client>
    </system.serviceModel>
</configuration>

It works when I send messages, but sometimes I get this error

The maximum message size quota for incoming messages (65536) has been exceeded. To increase the quota, use the MaxReceivedMessageSize property on the appropriate binding element.

So I try to do what the error told me to do, but c# says no.

What I tried so far

this gives designtime error "Invalid child element"

<binding name="tripAndTimeReportingServiceSoapBinding">
    <mtomMessageEncoding messageVersion="Soap12" />
    <httpsTransport />
    <maxReceivedMessageSize maxReceivedMessageSize="20000000" />
</binding>

this gives designtime error "Missing required whitespace"

<binding name="tripAndTimeReportingServiceSoapBinding">
    <mtomMessageEncoding messageVersion="Soap12" />
    <httpsTransport />
    <maxReceivedMessageSize="20000000" />
</binding>

this gives runtime error "Unrecognized attribute", also when I try with Uppercase (MaxReceivedMessageSize)

<endpoint address="https://soap.webfleet.com/v1.53/tripAndTimeReportingService"
    binding="customBinding" bindingConfiguration="tripAndTimeReportingServiceSoapBinding"
    contract="TripAndTimeReportingService.tripAndTimeReporting"
    maxReceivedMessageSize="20000000"
    name="tripAndTimeReportingPort" />

Other links I have read

Figuring out the required MaxReceivedMessageSize in WCF with NetTcpBinding

WCF - How to Increase Message Size Quota

The max message size quota for incoming messages (65536) ....To increase the quota, use the MaxReceivedMessageSize property

My question

Does anybody can help me with an example on how to do this ?

why do I get this when I see this being done in so many answers here ?

EDIT

I changed my binding like this as suggested by @steeeeve

<binding name="tripAndTimeReportingServiceSoapBinding">
    <mtomMessageEncoding messageVersion="Soap12" />
    <httpsTransport maxBufferSize="20000000" maxReceivedMessageSize="20000000" />
</binding>

With this VS finaly accepts this, but at runtime I still get this error for some messages. So actually nothing has changed it seems.

execption:

ex {"Error creating a reader for the MTOM message"} System.Exception {System.ServiceModel.CommunicationException}

inner exeption :

InnerException {"The maximum buffer size (65536) has been exceeded while reading MTOM data. This quota may be increased by changing the maxBufferSize setting used when creating the MTOM reader."} System.Exception {System.Xml.XmlException}

Stack trace:

StackTrace " at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)\r\n at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)\r\n at gttWebfleet.TripAndTimeReportingService.tripAndTimeReporting.showTracks(showTracks request)\r\n at gttWebfleet.TripAndTimeReportingService.tripAndTimeReportingClient.gttWebfleet.TripAndTimeReportingService.tripAndTimeReporting.showTracks(showTracks request) in C:\Development\Palm\gttWebFleet\gttWebfleet\Connected Services\TripAndTimeReportingService\Reference.cs:line 20349\r\n
at gttWebfleet.TripAndTimeReportingService.tripAndTimeReportingClient.showTracks(AuthenticationParameters aParm, GeneralParameters gParm, ShowTracksParameter showTracksParam) in C:\Development\Palm\gttWebFleet\gttWebfleet\Connected Services\TripAndTimeReportingService\Reference.cs:line 20357\r\n
at gttWebfleet.WebFleetAPI.apiTripAndTimeReportingService.ShowTracks(DateTime startDay, DateTime endDay, String truckNumber, List`1& results) in C:\Development\Palm\gttWebFleet\gttWebfleet\WebFleetAPI\apiTripAndTimeReportingService.cs:line 204" string

Answer 1

After some tips from @Steeeve and a lot of try and error, I found something that worked.

The trick is indeed to increase the size in the binding, like this

<customBinding>
    <binding name="tripAndTimeReportingServiceSoapBinding">
        <mtomMessageEncoding maxReadPoolSize="64" maxWritePoolSize="16" messageVersion="Soap12" writeEncoding="utf-8">
            <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" />
        </mtomMessageEncoding>
        <httpsTransport maxBufferSize="64000000" maxReceivedMessageSize="64000000" />
                </binding>

but also to disable mtom for the endpoint.

    <endpoint address="https://soap.webfleet.com/v1.53/tripAndTimeReportingService/disable-mtom"
        binding="customBinding" bindingConfiguration="tripAndTimeReportingServiceSoapBinding"
        contract="TripAndTimeReportingService.tripAndTimeReporting"
        name="tripAndTimeReportingPort" />

They use mtom as the default transport for some reason, I don't know if this is a stable configuration but for now it finally seems to be working.

I am still open for better suggestions.