Customer Support Experience

Anyone else finding it very difficult in resolving purchase issues. I recently purchased video doorbell and chime plus. The door bell arrived but no chime even though the packing note said despatched. So far I’ve found that the chime plus is on 3-5 week delivery so why didn’t the web site say this and more importantly why did the packing note say despatched. After 4 stressful phone calls I am no nearer in resolving as customer services cannot authorise a refund and keep saying “shipping “ will contact me. The did, by a no-reply email address so how do I reply or contact them. I’ve subsequently received another email (same no-reply email) saying if I don’t reply the will close my enquiry. Appalling, to be fair Customer Service are very sympathetic to the problem but appear to have no power to actually solve the problem and issue a refund. Does anyone have a better email address or phone number that actually gets you to someone who can resolve problems? Thanks.