Because I can't. I thought I made that perfectly clear...
Nope, you just said you can't, there was no reason why you can't use several suppliers
Hey, you sent me these cases but I don't particularly like them as I feel they're inferior to the ones you normally sell" isn't reason enough for a refund, so I continually lose money. It's not about finding a single supplier for me; it's about finding consistency. I care about quality, so I'm not going to peddle inferior products to my customers just because my suppliers are willing to compromise if supplies are short on their usual product.
You must be using inferior suppliers, I use BMS, Subli Blanks, Longforte, TMT, Listawood to name but a few. I have never had a problem with consistency and quality of product, but if I did I am sure that anyone of those suppliers would take my goods back and return my money. I agree with you in that if your suppliers are sending something different to what they have advertised it is not good enough. If they continue to refuse to return your money then you should quote the trade descriptions act.
I have a phone shop that wants to stock some flip cases, and unless I can get the range from one supplier, I don't know they will be exactly the same design/finish/PRICE?? Some flip cases are just over £2, some are nearly £4. With tiny margins, you can't operate like that. You don't know when you come to restock how much you're going to have to pay.
Why can the shop not stock flip cases in different finishes? The owner of an S4 case will not be looking at an Iphone case so I do not understand the problem. Also, you said that it wasn't about saving the money, but then you have just said it is. Phone cases have one of the highest mark ups in sublimation that I know of, so I really do not see how it comes down to price, and there must be a huge difference in the case that is sold to you at £2 and the one at £4. Pretty much all the reputable suppliers are within range of each other (they are certainly not double) there must be something else to give it a higher price.
USING: Whatever it takes to get the job done...