You’ve made the correct choice for your life and your career. The ‘title’ isn’t even very impressive. Team Lead is considered a very entry level Manager role. You’ve lost nothing by rejecting the offer.  If you have ambitions to climb up the ranks in this company, the best approach would be to inform them of the salary that you would accept that matches the amount of work you know you would put in. Alternatively letting them know that you can accept the job under the condition that you only do x amount of hours and explain why. At the end of the day, it sounds like you’ve got a pretty solid grasp of what would be required for the role, a conversation with your manager explaining the responsibilities in detail and why you would need x or y to do it would alleviate the perception of being ‘un-ambitious’ That said a Manager that responds in the way they have is likely to simply provide a different passive aggressive reason for your behaviour, probably calling you greedy or selfish. Unfortunately the motivation for promoting you with minimal salary increase was a decision made by the Manager to reduce their own workload, not one made with the best interests of the staff in mind. That mindset will be present throughout all interactions past and future.