If there is ever a massive market for paying by texts, then I would imagine that the dominant sites will either have 5 letter brandable names, will be dominated by the banks or paypal type companies....
I don't see your names being worth anything, as they do not contain any popular key words.....
Text my bill is also confusing....you want it to mean that you are paying a bill by text, but the sentence actually proclaims that the consumer wishes for a company to 'text him / her the bill'