Used the referral promotion on Google Pay to refer a friend so we both get £10, it didn't work, contacted their customer service who fobbed us off repeatedly saying it takes up to 28 days/etc, contacted them again after 28 days and they repeatedly ask questions that have already been answered by us kept being told we are being put through to the highest level of support but keep being told they can't do anything and they need to put us higher (they clearly don't understand how highest and higher work) eventually lied to saying that a code wasn't entered originally despite my friend having a recorded phone call saying it had been, yet they refuse to respond further