Substitution method, please help!!!

Hello all, I have recently been tested twice now with LabCorp testing. I used the substitution method both times with the same persons pee.

The first time I did it, I got the pee the day of and substituted within 5 hours of receiving the sample, I used a wizzinator with a hand warmer and it went off without a hitch, almost. I had my buddy pee in a bottle the next day just in case I had to retake the test for any reason (Thank god I did that)

The test came back too diluted and my boss told me I had to go back to the lab and take another test.

Obviously, I was very nervous, the peed I used was given on a friday, and refrigerated until monday morning for my test. This pee wasn't nearly as watery looking as the first sample... the only problem I can see is if the pee was too old, once again it was refrigerated the whole time and was only about 3 days old..

Does anyone have experience using pee in the fridge after a couple days? Do you think I will pass? This is a nice job offer.

I just need my nerves calmed down, any insight would be awesome....

Well let us know what happened. I'm not 100% sure what will happen but i hope your buddy wasn't drinking a ton of water before peeing for you.