I have received two Fixed Penalty Notices within days of each other.  Will I be able to accept the two conditional offers, send and receive my driving licence back in time to meet the time limits?

You have 28 days in which to accept conditional offers. If they have been issued by the same Process Unit, you can send them together. If the Fixed Penalties are from different Police Authorities, you should send off the first one, but put in a note that you require the licence returned promptly. If the licence is not returned within the 28 days, you should contact the other Authority explain the situation, and ask them to extend the time for acceptance. Most will co-operate in this respect.