Self-employed

If you have a T5, an amount in Box 13 would be taxable. Interest that is refunded and not used toward a non-prepaid funeral expense (flowers, reception, etc…) is subject to taxation.

The sales tax should have been refunded to you when you got your money back. However, since they charged a fee (penalty) for cancelling the contract, they likely charged sales tax on that fee, which is why you didn’t get the full sales tax back from your original purchase. If that is the case, there is no way to recover the sales tax amount.