Redundancy paid into DC pension

I'm due to be made redundant later this year and want everything over the £30k tax free element of the redundancy paid into my works pension (DC scheme) by way of salary sacrifice (employer contribution) which would equate to approx £70k. Can this be done by utilizing the carry forward rules? I'll have earned approx £34k at the point of redundancy and will have pension contributions this tax year of £9k. The three previous tax tears i earned approx £49k each year with pension contributions of about £20k each year all by way of salary sacrifice. I had a telephone call with pension wise and they said because it was an employer contribution it was OK but i also asked the same question on the moneyhelper web chat and they told me different so confused now as to whats possible.

Hi Sodium68,
Yes you can still do this:
Tax on your private pension contributions
Thank you. 

Thanks for the reply. I was concerned that by sacrificing the full £70k it would not be classed as "relevant earnings " therefore limiting what I could put into my pension in the current tax year.