Is it obligatory to follow up on the seller's collection of the purchase amount after it was deducted from the account on a date prior to the transaction, and given the discrepancy in transaction data between the invoice and the receipt, and after the bank stated that there was a technical error?

It appears that the questioner is not obligated to do so, as his liability is discharged by the seller's referral of the price to the bank. By virtue of the hawala (transfer of debt), the transferor is absolved of the debt owed to the transferee, and the drawee is absolved of the debt owed to the transferor. The right of the transferee is transferred to the responsibility of the drawee by consensus.