So the basic story is:
Two years ago I started this job as a part time admin assistant. I only applied for part time as then, circumstances were that it was all I could do.
Last year my boss asked me to go full time. I said I couldn't (after much research into local childcare, transport etc). I told him the most I could do was 30 hours. He agreed to this and my contract was changed accordingly.
Since then we've had two senior members of staff leave who have never been replaced. The workload has increased for everyone. I struggle to do the job I now have in 30 hours when the girl who previously did it had 40 hours plus help from me as an admin assistant. I struggle, but the work gets done. Three times, ive been asked to do a 40 hour week and I have explained why I cant.
I've now been told by my manager that shortly I will be asked to do 40 hours. (The powers that be apparently, want to give me more work) I cannot work 40 hours for this company. Due to the distance mostly and the responsibility I have as a lone parent. I've worked it out and I would not be home before 8pm. I understand that the fact I rely on public transport, have no childcare and am a lone parent is not the company's problem but I did not apply for this job, never wanted this job and now I feel im being pushed into the extra hours.
I am going to refuse, in writing and outline the reasons why. Where do I stand on this?