ok so you never actually held the shares and you never supplied the stock required by the company?
Just because there was an email stating this foes not give you an automatic entitlement to claim money for it. For example, if I sent you an email in error saying I owe you £1000 it does not mean I am now legally bound to give you that money. You can only claim it if you meet the conditions which would have made you entitled to that money or shares. If you sis not meet these conditions, for example providing funding, purchasing shares by a specified date, etc then you cannot expect any dividend payments as a result - only by meeting the specific conditions for payment can you expect to receive anything in return
a contract can be legally formed without anything in writing, but you need to show there was an offer by one party, an acceptance by the other and some sort of consideration.
Please let me know if this has answered your query or if you need me to clarify anything else for you in relation to this?