By Veronika Bondarenko Both fintech platforms are raising their instant transfer fees this spring. If you make frequent cash transfers, you’ll know the pain of choosing between waiting a few days or forking over a hefty fee for it to be instant. Paying for the convenience can add up as Americans, on average, spend over $300 a year on various bank and transfer fees. Now, and unfortunately for many, PayPal (PYPL) – Get PayPal Holdings, Inc. Report and subsidiary Venmo just announced that they will be raising their instant transfer fees this spring. How Much Will I Have To Pay For That Transfer N…