| The cost should be £50 to upgrade between each model, ie: £50 from C1-C2, £50 from C2-C3, £150 to go all the way from a C1-C4.
You used to be able to do this over the phone direct to DeltaP, but you now have to go through a dealer, who will then phone DP, get the code, and give the code to you - I suppose it depends what dealer you go through, as to whether the dealer will take the opportunity to put an additional cost on top for the upgrade - I recently upgraded mine from C3-C4 for £50 through Kent Diving, so they do it at the basic price. |