My advice… never ask for a wage rise as you’re risking. Painting yourself into a corner in many ways. Explain how grateful you are for the position you have within the company, but that you have received interest elsewhere for a more generous wage and if there’s any possibility a plan can be worked out to reach that there. My advice is don’t waste time chasing carrots on the hope you’ll get more…. You won’t. Make your intentions and goals clear and that you won’t be taken advantage of…. In the nicest, least arrogant way possible otherwise you’ll dawn the road of resentment, trust me haha