Billing issue

I have been inactive on my rain network for the past 3 months, Today I wanted to pay my subscription to continue using the network and to my surprise the invoices have been accumulating. This is something I was never made aware of and I have been a loyal subscriber to rain for a couple of years now, no one has ever communicated to me that if I will be inactive then i need to call and advise you to stop billing me.

I spoke to a gentleman this morning with this query and he advised that he will escalate the matter, because indeed I have not been active I won't have to pay that arrears amount, I will be advised how much to pay today and continue using the network and on the 25th of this month I can continue paying my usual monthly subscription fee. To my surprise, I received an sms saying I should pay R499 and I should pay the arrears before the 25th of this month, that was not the agreement with the consultant I spoke to on the phone this morning. please rectify because I would really like to remain your customer but this billing issue is really discouraging especially because this was never communicated with me before.