By the contract they don't have to issue a verbal but it's good business practice Imo.the warning letter won't actually be for not performing the methods but the company will put it under the all inclusive "failure to follow instructions ".u don't grieve warning letters u just protest them u grieve all other discipline.
Wait until the op has the company skip suspension and issue an intent to terminate.the company can do whatever they want that don't mean it will stick.
