Terrible service

I have been with this medical scheme since 2014 but this year they have put me through hell, went to their office to register for maternity program I filled in the forms and gave them back also I gave them an invoice for a claim they had to refund me,3 months later I am at the doctor and not registered to the program when we call them they tell me they can’t find my forms I have to register again, none of the refunds I’ve claimed have been paid back to me,mind you they will never call you you’re the one who must constantly call them back even when you call them you struggle to get hold of them, I have never been so frustrated in my entire life.