7 business days and no refund

I have completed an application to have TooMuchWifi installed at my place in Loevenstein, money was deducted within seconds. The techs came out to try and install the WiFi, which they couldn’t because their signal is not strong enough to reach my home, that is fine- I then had to waste my airtime to call their contact centre to request for a refund, the first person hung up and never called back, the second agent took my number and promised to call back, this never happened. I then called for a 3rd time, this lady requested I send my banking details and I sent my Capitec details, she said refund will take 3-5 working days, I was obviously not happy since money was deducted in seconds when signing up, I then asked which bank they using, she said FNB, I then opted to rather send my FNB details, hoping to get my money on the same day to get a WiFi provider that are able to give me the services. Nope, regardless if we using the same bank, I still need to wait 3-5 working days, this people just don’t care, I obviously need the WiFi, hence applying. Update: Today is officially 10 days, 7 business days and I am still awaiting my refund! This business is really a disgrace. I need to know when exactly I can expect my money back.