Glo charged you and refuses refund?
Were you charged by Glo and you're based in Europe? You have right to a 14 days withdrawal, no questions asked. They are obliged to refund you because EU has very strict consumer protection laws and if Glo.com is bound by them. Run your case through ChatGPT if you don't believe me ;) I hope this helps!
You guys in the US - I'm sure California has some consumer protection organisations who could help you too.