+2
votes received
Always pay the correct amount of bitcoins. Forget about the price. Bitcoin is changing all the time, so if you flip it over to change 0.0017 to £ to see how much it costs.. then you pay.. chances are you'll pay 0.00168873 or 0.00170134 (numbers are completely made up) instead of the intended amount of 0.0017.

If it is 100% correct, contact the seller, most have tip jars etc to sort this kind of thing out.
+2