On the 8th March, 1941 H.M.S Wolverine was the local escort to HX-111. If you can find evidence, and show it to me I'll gladly provide my evidence to show otherwise.
On top of that, it has recently (1992) been brought to the worlds (those who have listened) attention that on 8th March, 1941 H.M.S Wolverine was not attacking Prien's U-47. In fact, it was attacking U-A and only damaged it.
Reports now suggest that U-47 fell victim to its own circling torpedoes.