If you've been working self-employed, general domestic plumbing and gas work, but want to apply for vacancies with a bigger firm, how do you prove your experience?
Most ask for 3 years experience for example, but they tend to all use agencies to advertise. When you call the agency they don't know the answer and I haven't been able to get directly through to a recruitment team at the specific firms!
What do they ask for as evidence?
Cheers in advance for your replies