Review on 🖨️ TekMall Compatible Ink Cartridges for PIXMA TS5020, TS6020, MG6821, MG5720, MG5721, MG5722, MG6820, MG6822 Printers - PGI-270XL CLI-271XL Replacement, 6 Packs (No Grey) by Terry Wilson

I recently used the larger black ink cartridge from this order (previously used other colors in this package) and my printer didn't recognize it. The orange light on the printer compartment is off, indicating a valid cartridge. After several attempts and inquiries at Canon it still didn't work. I was so upset knowing it was a full ink tank and the snap cap wasn't broken. So I pulled out the instructions and information that came with those cartridges. I decided to email the seller TekMall since he provided the address. The brochure stated that customer satisfaction was a priority and guaranteed their product against defects. I thought it was actually a defect as the others in the package worked perfectly. It's likely that the little green computer chip on that particular ink tank has failed. The people at TekMall responded immediately and asked me a few basic questions; After replying to them and giving them the original Revain order number, they informed me that a new replacement would be sent to me. And without payment! And that's about 2-1/2 years after the original purchase! I just didn't have a chance to use this cartridge until February 2021. I take my hat off to this seller for doing what they say in their brochure 100% customer satisfaction. Thank you for taking care of me!