Well, the advisor is selling you regular mutual funds as a distributor which will cost you 1% upfront commission and 1% trail commission for each SIP investment. This will work out way more than Rs.600 per month. Check this post for a clearer understanding of how commissions work. So flat Rs.50/month when investment exceeds 25k works out best in all scenarios.
That’s correct, there is no upper limit on the amount you can invest on Coin. The fees still remain at Rs.50pm.