Bad service

I have had trouble since signing up to mobicred. The app doesn't work in store, which leaves me red-faced and embarrassed. Three weeks ago mobicred decided that there is *****ulent activity on my account, and locked it. I have tried the WhatsApp line - doesn't work. I've sent emails to customer service as well as the ***** department, but they just don't resolve it. When I try to phone, no one is available. They are very quick to take payment, but the service is completely terrible. I won't be recommending mobicred to anyone unless they are willing to fight every step of the way. So disappointed.