Discoverry Health

My mom has a hospital plan with them Member ********** 90, but last month they to from her bank R2000 that is incorrect should be R988. After hours on the phone and forms that gives me the wright to follow up on her account (she is hard hearing) they told us a broker change her medical aid without her signing any documents and only she could fix it. Well after many more hours she the told us to pay in R899 (witch we did)and that my moms medical aid was changed well that did not happen, this month she got the shock of her live R3929. How can they change her medical aid without notifying her, and that without her giving consent and now we sit with the problem and hours on the phone with no response.

kind regards