Red...I will try to use my brains first and see if I can follow this:
1. Your initial post suggests it's a shame that WGT is still offering a free sleeve with the $20US purchase of credits;
2. BBQ Dog compares your opinion to those from people who flag typos in the threads.. then he promptly makes a typo, after correcting yours; and
3. you then rhetorically(?) ask if you buy the credits and don't get the sleeve, what then?.
...If a person didn't notice the expiry date, purchased the credits in good faith and didn't receive the sleeve, a case could be made to CS that it was WGT's error by misleading people. The sleeve would probably be awarded to him or her.