Pass custom Payment Method ID when amending a subscription through SOAP

[rdavila]

Hello,

Let's say a customer has registered multiple CCs, I'm wondering if it's possible to pass a custom Payment Method when generating the amend request. This is possible when creating a new subscription but looks like we can't do that when processing amendments. If that's not possible, then I think the only way to do it is to set the selected Payment Method as the default before generating the amendment right?

Thanks!

Rubén.