Except it's not illegal to not refund you.
Links please otherwise you are lying; I'm not bothering to look up anything more on the issue because frankly I don't care enough to bother. I think we all know it's bad policy to refuse a refund, but I'm pretty sure it's against the law in the state of California with the current way Taco Bell set up the "don't like it? get a refund" system in place. At worst it's terrible business practices.
edit: here is the whole refund law from CA.gov:
Consumers have come to expect stores or catalog companies to offer a refund, credit or exchange when they return items. Sellers are not required by law to accept returned items unless they are defective. However, California law requires that retailers who have a policy of not providing a cash refund, credit or exchange when an item is returned with proof of purchase within 7 days of purchase must inform consumers about their refund policies by conspicuously placing a written notice about their policies, in language that consumers can understand, so that it can be easily seen and read. Some companies may limit exchanges or returns for credit or refunds on all, or some products. Some may not allow exchanges or returns for credit or refunds at all. But whatever the limitation, it must be conspicuously disclosed. Before making a purchase, carefully check the store's policy.
The policy must be displayed either at each entrance to the store, at each cash register and sales counter, on tags attached to each item, or on the company's order forms, if any. A return policy printed only on a receipt, for example, is not sufficient.
If a store violates this law (California Civil Code section 1723), the purchaser can return an item for a full refund within 30 days of purchase.
There are exceptions, however to the general rule requiring notice. Notices are not required for sale of perishable goods like food or plants; for items marked, "All sales final," or something similar; for items which are used or damaged; for items customized for the consumer and received as ordered; for items which cannot be resold for health reasons; or for items not returned in their original packaging.
Some stores keep records of consumers who frequently return merchandise and sometimes report that to a central reporting company and may not offer returns or refunds to such customers. The return policy notice must refer to such practice.
Consumers who believe a retailer has violated the law can notify the consumer protection division of their local district attorney's office or by filing a complaint with the Attorney General's Office.
So technically in the CA rulings on refunds alone they get away legally because its perishable, but they also as a franchise have an open established terms of agreement which says you can ask for a refund; its posted ON . THEIR. FUCKING. WALL. GUYS. STOP. BEING. DERPS.
Its a verbal agreement and frankly from what I see online if you go through the support service even if a store refuses you if it's a valid receipt they will refund you. Depending on this terms of agreement they may have violated it by not giving me a refund when asked, thus making it illegal. Then again as I said before, you can take your whole "it's not illegal" argument and put it in your red wagon and take it home because it's only making me laugh harder IRL

. Anyone amazed they didn't call 911 and knew he was outside for 30 minutes? Dat logic.