Smile: Loyalty Program Rewards

I have Smile.io set up to pay out rewards in levels $5, $10 & $25 but it will only pay $5 at a time and only one per purchase. Also, lately it won't connect to my POS so I end up giving the customer a $5 discount to keep them happy. Support isn't available before I go into work and I'm a small business owner with little availability during the day. There's no email address where I can send my concerns.