I am a part-timer on the preload for the past 2.5 years, over the summer at my center the company put up bidsheets for a seasonal 22.3 position for preloaders, I got the job and got the raise included. When the position ended on 9/1/18 my pay rate should have gone back down to my PT rate, however it went up to the driver's starting rate for some reason. I notified my full-time supervisor via text-message and verbally every week for the past 1.5 months since I noticed the huge over-payment. I am curious if the text message could be used as evidence of written notification required by Article 17, Paragraph 6 so I wouldn't be liable for anything after 5 working days of the written notification. Thanks for the help.