Worst services ever.

They took our medical aid over in 2015 and promised us we would stay the same with the same benefits nothing would change. The under pay accounts which should be paid in full. They changed our medical aid to a savings account with out our consent or acknowledgement. I was informed by our doctors that the savings is depleted. First time i even heard we where moved to a savings option!!!!! Now that we want to leave the medical aid due to new work and poor service they want me to pay back the savings account. The amount is more than the savings amount we get for an year. The reason provided was due to claims they had to pay and we need to pay the money back. When I rep**** with a mail saying i want proof where i was informed about the changes I don't get a reply. I will not pay them as they broke the agreement that was signed from the beginning and we never agreed to move to a saving option. I even requested to speak to a manager last year and to this day nobody did the trouble to phone me back!!!!!!