Confused

Good day Adt I received a sms advising me that my debit order was returned and my subscription is in arrears and my service can be suspended. A contact number for Stennistene Cornellissen was attached I could not reach this person after several calls. I contacted the call centre and was advised to forward proof of payment to them and they will forward it to that person. My question is why provide a number if nobody answers. The premium was paid by eft. Hopefully someone will answer if and when there is a emergency