We purchased the ability to use an online Email Marketing Platform called Hubspot. After paying an initial invoice of $13,250 for the first 6 months of a 12 month plan, we were informed that there was a mistake in the billing and that another additional $7k was due. The decision was made not to continue with the service at this point, and a refund was requested. Our service was shut down, we were locked out of the account and then given a counter offer that Hubspot would like to keep the $13,250 if we agree to cancel the contract. Basically, Hubspot decided to generate an Invoice for an additional $7k after receiving payment for an Invoice of $13,250; and, when we asked them to be let out of the contract completely, they kept the entire amount. We are out $13k.