Sorry about that. This is a frustrating problem that we don't have control over. For some reason, the folks who control the version of the phone you have decided that a period isn't required for the numeric keypad. It doesn't make much sense. The numeric keypad is supposed to be different from the phone number keypad which doesn't require a period.
The frustrating thing is that this is limited to one or two versions of Android on Samsung. Most versions of Android have the period (and a comma) available on the numeric keypad.
You might look into sending fuel-ups via
SMS. Or try using the fuel-up form on the full site. We don't specify that mobile devices should use a numeric keypad there.
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