I have heard of some rural places still charging 30-50 per pack of tests, get a cheap set here.
About this item
Negative test results do not exclude infection with COVID-19 (so face masks, social distancing and good hygiene practice must be maintained)
Positive test results or symptomatic persons require immediate confirmatory testing using a polymerase chain reaction (PCR) test.
Escalate it. You'll eventually get to someone with common sense and the power to refund you. I had an expensive product delivered by Amazon to a house on the 'odd' numbered side of the street, about 50m away. I was home, got notification that it had been delivered but couldn't find it anywhere. Just as I was writing a message to them the woman form the 'wrong' house knocked at the door and handed over my box. Their contractors vary between excellent and incompetent ime.