Long story but will try to be brief. Was a deputy headteacher for eleven years. Left teaching for a year due to bully of a new headteacher. Went back to teaching as supply teacher for 2 years. Got permanent job as class teacher. Received TLR 2 for SENCO role in same school in Sept 2017. Same school but now been given assistant head. Do I have to begin at L1 again or do I resume L5 (post is described as (L1-5) due to my previous experience?