Bad service all around

On 19/01 I signed up for fibre. 2 days later I received a request for my utility bill to confirm my address. I sent it within minutes of receiving the request. When I contacted Afrihost on 25/01 I was again asked for the utility bill which I sent through once more. On 25/01 I received a call from the courier who was at my gate with the router. I was not at home ( I did advise when placing the order I would be home after 1pm). The courier guy said he would come the next day. I followed up on 26/01 as the parcel did not arrive. During this call I also managed to sort out my address confusion which despite sending my utility bill through twice was not resolved. I also found that my router was delivered to somebody else. I received the parcel on 27/01 and the courier guy showed me the details provided by Afrihost. The router was addressed to somebody else and not me hence the reason my router was delivered to the wrong person. On 30/01 I queried when the cabling would be done and was told it was scheduled for 12-2pm on 01/02. If I did not asked I would not have known and Openserve would have arrived and nobody would have been home. This time was scheduled despite me advising I would be home after 1pm. On 03/02 a debit order was processed after installation. Again on 04/02 another debit order was processed. As this is an account for my debit orders only there was only sufficient funds for my debit orders and since this was not authorised for by me this was reversed by my bank due to insufficient funds. I have now been charged for this debit order being returned and this places my credit rating in bad light. I need somebody to contact me as I am not happy with the poor service thus far and I would like to be credited for this bank charge. I also cannot have unauthorised debit orders going off my account and I need an explanation for this.