Payment and crypto

What if I send slightly the wrong amount?

Answer

HushSMS invoices carry a 2.5% underpaid-coverage band, so a payment that lands marginally short still settles and the line still provisions. That band exists because many wallets deduct the network fee from the amount typed rather than adding it on top. Larger discrepancies are reconciled by hand — mail [email protected] with the transaction hash and it gets sorted.

The longer version

This is the single most common way a crypto checkout fails anywhere, and it is almost never the customer's mistake. You type the invoiced amount, the wallet quietly subtracts its fee, and a few cents short arrives against a processor configured to accept exact amounts only. Without a coverage band the invoice expires unpaid while the funds sit on-chain, and someone has to open a ticket about eight dollars. The other half of the problem is timing: invoices hold their quoted rate for ninety minutes, and paying after that means the money arrives against a dead invoice and needs the same manual reconciliation.