Discounts require multi year commitment for minimum (and increasing) spend. Generally you need to be either profitable or a well funded startup to demonstrate why a vendor would trust your ability to pay (it's literally a debt on your books). How do they know you're good for it?

Plus multi cloud means less scale and less marketing incentive (can't talk about you as a x cloud customer).

I wish you the best, but would encourage you to not set your prices below your costs.