Poor service from MTN and DSV

I bought a sim online on the 24 October and paid for it. They confirmed The order via email and told me dsv will make arrangements for delivery. Dsv kept quiet, I called multiple times and after a week and a half since they were rerouting the parcel to correct depo because it was at a wrong depo, they finally gave me a date the 7 November for delivery. On the day they didn't come or contact me and on the 11 I called dsv to find out the issue they said parcel was sent with incorrect driver and they will call again to make another arrangement for delivery so I told them it's better they take the parcel back to where they got it from because I paid for something I'm not using and it's 3 weeks already and I still have to wait for an arrangement and wait for delivery that's a month. Today is 18 November, mtn or dsv never bothered to contact me so now I sent a message on their Facebook page and they're telling me that the whole order was cancelled and if I paid I must send an email for refund which will take 7-14 days, I said wow and they said shap. Just imagine