previous emloyer did not pay taxes

[nice32]

Hi to ALL
i am on tier 1 GEN will be applying for ILR.
I worked for a company for two years. Last Friday when i contacted HRMC for my employment history and when i got it I was surprised that my previous employer did not pay my taxes. I have p6o for one year and for the second year i have just on payslip which shows my 7 months salaries. All the money has been paid online. But some time they paid it from different name. I asked about it from them why you are paying with different name they told me we are outsourcing payroll system.
So no what should i do.. Can anybody help me with this?
If I am contacting HRMC about it they will tell me to pay it. Though it’s not my mistake
If they chasing employer. Company is no more exist.
Anybody experienced such situation if yes please gives your opinion. Thanks in advance

[kali54]

were you also self employed as well?