No Statement on mail. No Payment

I received a notification(SMS) stating that I have an outstanding account with n Ref number and need to contact them urgently on ********** . This being Monday (27/05/2019). A lady phoned me very rudely stating that she wants to talk to person ABC (Being my mother) I asked her in regards with? Where by she constantly rudely insisted that she can disclose info to me and needs to talk to ABC. I advised her that she close and would need to phone back later. She phoned back 10 min later telling me that she had spoken to ABC and that she authorized that she can talk to me. The lady then provided me we detail stating that their company needs to collect an outstanding account of R1868.98 for service from a Hospital visit. I normally assist my Mother with account payments because she is old and does not get to everything. I made an arrangement with the Lady that phoned me for payment on the 30/05/2019 (Payday) I asked her to make note of this. AND I requested that she sends me the account formally on mail with banking details. (Because one can not simply just pay anything you receive on you cellphone in modern times) The Lady confirmed that she will make note of the arrangement and I will receive the mail before the end of the day 27th latest 28th. (Which is in order. Once details is received this leaves enough time to make payment en reflect on their side.)

Tuesday came and gone. I only received more SMS's reminding me of the account. I phoned and inquired about me not receiving the mail. The agent then advised me that only their Manager can send out a mail which I requested. The agent advised that they will request that the manger sends the mail before the end of the day. Nothing received.

I received the SMS notification everyday reminding me on the account. AND every day I phone them (Not them phoning me) I phone them requesting the mail with the required details. Still NO MAIL.

Today is the 31st. I received a notification stating that I did not stick to the arrangement made. But how can I make a payment if I don't know where to. Again I phoned, and again same story of the manager needs to send this mail.

If there is no mail/statement. There is no payment. I feel that if this company can't do something as simple as sending a statement per mail. Then they can explain and settle the account with their client, being the hospital.

Poorest service I've received to date.