re: Just got an offer letter for less than what we had agreed on

Just talked to him and he was really cool about it. He gave me a 90 day proficiency check list on training that needs to be completed, it's a policy for his company and everyone does it. I'm most of the way through it now anyway. He said we had discussed this, though I don't recall it, but he was going to pay me what's on the offer letter until I complete the training then increase to what we agreed on. We probably did have that discussion and I forgot about it as I've had a ton on my plate with training and school. I told him that's fair enough and requested that he put it in writing, which he agreed to.