Mweb disgusting service/ no service

Hi I signed up with mweb on 01 May 2020 and bought a voucher of R399 for fibre. After buying the voucher and doing the final installation step on mitchells fibre I was told that there is already a service provider. The week prior to this my mom who is 63 years old tried to apply for fibre on the mitchells fibre website and choose Afrihost as the service provider. She did not complete the installation because she felt uncomfortable putting her banking details in so she canceled everything. After which I did it with mweb and bought the voucher and at the last step it told me that there is already a service provider. I went onto afrihost website and canceled my mom's order which was incomplete due to payment and received a notification of the order which was canceled. So now I'm struggling to get hold of mweb, called numerous times, was put on hold for more than 10 min at a time, log onto my mweb account and added 4 queries already with no response. Mweb took my money and gave me a tax invoice yet nobody is able to assist me, now that the got my money. Mitchells fibre said they only do the installation and I have to take it up with mweb, yet I'm sitting with no installation, but a set back of R399.