Bad customer service

In March, I went to the store to inquire about lay-byes and i was advised to get a gift card instead because the store does not offer lay-byes. What the consultant failed to mention to me was the fact that i would not be able to redeem this card online. I have been calling the customer service line and writing countless emails to them but no one is willing to help. This gift card is worth R4000 and it is so frustrating that i have to deal with all of this. I tried asking about getting a refund but they said i should wait for the lockdown to be lifted so this means months of me not having a phone when i could go elsewhere to get one. i regret setting foot in that store and even more trusting them with so much of my money.