I purchased a top down, bottom up, 3/8" double cellular shade from Selectbinds.com. They were very crooked. Both at the top and at the bottom. I was able to send them back. When they were returned they were still crooked by about 1/2" on the bottom.
I have spend about 30 hours trying to get these blinds fixed. Every time I call I wait over 10 minutes, only to be given the chance to leave a voice message. No one returns those calls. The only way to talk to a live person is to call as though I am buying blinds. I have talked to about 3 sales reps that way, but they never do what they say they will do.
The only way to talk to anyone is via email. I have taken pictures and they have passed them on to the manufacturer. The Manufacturer may be a company called Timer Blind and Shutter out of McKinney, TX. The last message I received from Selectblinds.com said to place a shim in my window to make it level! My windows are level, the blinds are off by about 1/2"
I bought these window treatments because the reviews were so high. I have come to realize that they don't post all the reviews that come in. My review is not among those.