We bought blinds with a lifetime guarantee (but $7...

We bought blinds with a lifetime guarantee (but $75 per repair visit). We've now had the blinds about 15 years, and each blind has needed to be repaired multiple times. I believe we've paid about $750 or more simply for repairs. This is inconvenient, of course, but until the last repair, service was at least prompt and responsive. Unfortunately, we had strings break on two blinds over a month ago. A repair person came to take them away, I paid the $75 fee, was told it would take no more than two weeks and probably less, and we still have no blinds. I have called customer service four times, and each time I have been assured I would receive a call back "from the local business" (as calls go through a call center). I have yet to receive a call back and have spent way too much time on the phone and holding, waiting for a response. They can't transfer me to a manager, my complaints to the poor call center employees are futile, and I still have NO idea when I can expect to get my blinds back. To say I am frustrated is an understatement. I would NEVER recommend this company--not anymore.