Bought some jewelry cleaner of tjc to clean my opal jewelry and made sure it was the correct cleaner, followed instructions and when I took the ring and necklace out of the cleaner they had changed colour, got in contact with customer services to ask for a refund on the jewelry and after a week of asking for a refund they are refusing because I'd bought the jewelry of another channel, I've said it was there cleaner that ruined them, it's a nightmare, I've bought 142 items of the channel and they cant even refund me so I can replace the item. I'm a very unhappy customer.