A pension is a long-term investment. The fund value may fluctuate and can go down. Your eventual income may depend on the size of the fund at retirement, future interest rate and tax legislation.
The value of investments and income from them may go down. You may not get back the original amount invested.
A mortgage is a loan secured against your home. Your home may be repossessed if you do not keep up repayments on your mortgage.
The Financial Conduct Authority does not regulate will writing, inheritance tax planning and most forms of buy to let mortgage.