Mugg&Bean rewards system sucks

I joined the Mugg and Bean rewards app 3 years ago. We regularly visit Mugg and Bean monthly and scan the receipt to earn points. For the first two years I received a voucher for a slice of cake on my birthday month. This did not occur this year and on an enquiry to their head office I was informed the following from two different persons 1) Kindly note that mugg and Bean term and condition have changed. Only qualifying customers receive the free birthday slice of cake so if the customer has not received any birthday voucher a month before that means they are not one of the qualifying customers. Qualifying customers are those who order on Mugg & bean app more than twice or more or more often. 2) Birthday vouchers are only sent to qualifying mugg& bean customers at the beginning of their birthday month. The qualifying criteria is that you need to use the loyalty app payment feature two or more times in the proceeding 12 months, either paying with a linked card or scanning your payment receipt to earn loyalty beans. The criteria of scanning the payment receipt was met as we visit Mugg &Bean at least once a month and I have a credit in my beans account. I have since used the credit, and removed the Mugg&bean app as I will not be visiting a mugg&bean store again