Additional Payments for 2024 SHSU Summer Camps This payment portal is for any ADDITIONAL payments towards camp balances only. Please make sure to only use this link after you have regsitered your camper and paid the initial $75 deposit for the particular SoM summer camp your camper will attend. Please do not use ISD email address due to school Firewalls, ISD emails do not work. Please also make sure to check Spam & Junk folders.