In article <70b0f286-8d0c-4a18-bca7-abaf4dbd0615
@z17g2000hsg.googlegroups.com>, lindkvis@gmail.com says...
> If anyone has any advice to offer, that would be much appreciated.

I've never heard of a 6-month extension. They are either 12 or 18
months.

I think the more likely scenario is that your original contract was for
18 months, whereas you believe it to have been 12.

What price are you paying and for that how many mintes/texts do you get?
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Regards
Jon