Paid for are heores missing

ive paid for a couple of heores and now i have to pay for them again

i just bought nova, a week or so ago, i earned my gold back already, but now i have to pay for her again.

i got back into it about October of 2020 after not playing for roughly 3 years, im missing heroes i paid for with actual money, i didnt care until now, i legit just bought a hero and now i have to pay for it again