Amazon trying to not pay people

So VAX5 was locked up yesterday for my 9 am shift yesterday and I'm thinking "ok, let me contact support and surely I'll still get paid." Stupid me for thinking that cuz now I have support parroting to me that I can only get paid for blocks that I delivered for... despite being paid multiple times in the past for checking in and not getting a block to deliver for??

Anything I can do to escalate this if I can't get anywhere with support? Do I have grounds to stand on or do they not have to pay me even though there was no warning or notification for cancelling multiple peoples shifts withoit prior notice?