Rain bad correspondence and internet

Good day I bought a sim card at rain and have been using it for a while, however due to employment uncer*****y i stopped using it for a while which is permitted according to them as this was "not a contract deal" i have since then paid and reactivated my sim on the 1st February 2021 and I came back online a day later Suddenly without any notice, the sim card started going offline and that was on the 8th February 2021, i then sent about 4 emails to their "support service" starting from the 8 but to date i still haven't received any correspondence from them and to make matters worse they do not have any phone number were a client can call them. Rain has been providing good reception but suddenly things are becoming worse and this is at a time when my children really needs affordable data for their online studying I am currently sitting with a useless sim card that i will have to pay at the end of the month even though i only got to use it for just 8 days when the promise was that i will only pay R250 for unlimited data for 19 off peak hours for a month which is turning out to be untrue Please assist as i have tried every avenue provided by them