GREAT DOG CO. review for S Loyalty and Rewards Program

DO NOT even consider using this app. They provide no support. I have contacted them 3 times in a week with no reply. It's as if they think they can just collect money and screw their customers. This is absurd. Fed up with all these apps that provide zero support. Shopify needs to remove this app. Whenever I have issues (all related to customers who can't access account or sign up for one), I'm told it's my fault or my customer's fault. It's incredibly annoying. Nothing ever gets fixed. Clearly, if a customer has an account with my store, it should also be able to create a loyalty account but if you ask this app developer, that's not true. Somehow, some way they are doing something wrong. I would look elsewhere. i just waste time trying to get this thing to work. Once installed, it's a lot of work to switch to another app which is what they count on. Now I'm left to find another app where my customers can actually partake in the loyalty program that we pay for monthly. Ridiculous.