Adecco Warehouse Worker interview questions

Applied online. Received an email to complete information online including choosing an interview time slot. Lady then called, went through all online information, asked some basic interview questions. Asked what days am I available to work. Sent me a contract - which I sent back within 48 hours. Another agency sent me an email to confirm my citizenship- sent back all the details within 48 hours. After 2 weeks of no contact, I sent an email to chase up, no reply. I then received an automated email saying candidate has withdrawn application- which I never did. I emailed the girl who had interviewed me and she said I had not sent back the signed contract within 48 hours. I forwarded the emails to show I had. She replied saying there must be a glitch and she will follow up. Then never got in touch with me. I called - no answer. I emailed- no answer! I then emailed again - copying the generic adecco amazon email. She replied!!!! Said someone will be in touch to advise when I can start. That was on 16th October. No one has got in touch!!!