That is it! These are all of the scenarios that you may face when paying our invoice with Bitcoins. We recommend sticking to Electrum to minimize the risk of expired invoices and underpayments. Refer to our guide here for setting up Electrum. And if you need to buy some bitcoins quickly, use our credit card option for purchases between USD 50 – 5,000 (click here to read our step by step guide on paying with credit / debit cards).