It being a first twin in the lic. I think a knock at a caa officer's door might be in order.
The jar-fcl used to read:
JAR–FCL 2.255 Type rating, single-pilot – Conditions
(See Appendix 1 to JAR-FCL 2.255)
Pre-requisite conditions for training: An
applicant for the issue of a first type rating for a
multi-engine helicopter shall:...
Haven't looked it up on the easa fcl yet.