I found it very frustrating and disrespectful when people said they would buy a commercial license (I dual licensed), and then took three months to buy it. I clearly wasn't a priority - they didn't need to do anything; I was dependent on their goodwill.
That is probably just the length of time to crank the paperwork through at their end. At some companies, taking only 3 months to buy something is considered quick! I appreciate it was frustrating but I'm sure no disrespect was intended.