Covid-19 rest refund runaround

Contacted Momentum before taking a Covid-19 test recommended by Dr and was informed I should pay beforehand and will be given a refund if test comes positive. It came positive, now they don’t want to reimburse, given run around, with insistence of EFT proof of payment, when payment was cash and have a receipt from the lab which confirmed receipt of funds. That’s not enough to show I paid.

Lab even got in touch with momentum on my behalf to confirm my invoice and receipt, now, they don’t response anymore. Matter on going for over a month. There’s now many references to even keep track.