Clicks refusing to refund returned online order ref ***6

I placed an order which i cancelled within two days and asked for refund, clicks response was i must received the order first, then take it to the nearest branch for cancellation and refund. I told them not to waste their time as i was not prepared to sign for the order from the courier, the courier arrived last week friday on the 20th of February and I told them to return the parcel back to clicks. On monday 23 March 2020, I called clicks who confirmed that the courier status says parcel refused by recipient. I sent my bank details on the same day for refund which has not been processed to-date. I just tried to call them, first time i was transferred to a line which nobody picked up, i got cut off after more than 5 minutes. Called again, transferred to a line which nobody answered.