If HKS was going to sponsor you, even partially, they would never ask you for $88.
spon·sor ( P ) Pronunciation Key (spnsr) n.
One that finances a project or an event carried out by another person or group
If someone is in a position to sponsor, that is to say they could finance, your project WHY would they ever need your $88?
It blows my mind that people can honestly think that a company that can 'afford' to give hundreds-of-thousands of dollars needs your $88.