Hi Butterfly! I agree with WhiteRabbit... If you can't get the right size pot just turn a smaller pot upside down in the larger pot to take up some of the extra room. I've tried this with other plants and it's worked well for me.
Bear in mind though that I haven't tried this with orchids...and I'm a newbie so my advice is not very educated.
Good luck...sorry you're having so much trouble. I've been suspecting myself that phals aren't as easy to grow as they advertise. Don't give up though...it's all a part of the learning curve...or so they tell me!
