Re: DVLA : My Driving License has expired!
Your photo licence shows a "valid from" and a "valid to" date as points 4a and 4b. Are these not 10 years apart? There are some possiblilies to result in a shorter period, for example, is this your full driving licence and if so, did you perhaps have your provisional for 3 years? This would mean that although your licence was converted to "full" for free, the expiry date of the photo wouldn't be extended, thereby resulting in you needing to update the photo 10 years from when you first submitted it.
as RayKay points out, your licence hasn't expired but you do need to obtain a new photo licence (which will also get you a new counterpart because the issue numbers must match) as soon as possible.