50% discount during lockdown

Hi ,last month I requested not to pay since I won't have enough money to pay for my medical aid since it lockdown , but Affinity health suggested that I at least pay 50% of my normal debit order for 3 months ,then pay the diffence after lockdown and we agreed on that ,All of a sudden they deduct normal premium,unfortunately I only left the amount we agreed on and debit order was not successful and i informed them about it ,now they tell me it wasn't for the current month(April) and they told me they will try and resolve the issue as soon as they speak to the manager ,until today they are still trying to resolve it ,all I'm getting is calls from them telling me to pay my full premium but no one is telling me about the progress of my query.