Yes, you will need to cover a part of the full-tuition fee depending on when you lost your scholarship.
The sum is counted proportionally (12 months = 100% of the Data Science course, 6 months = 100% of the Data Analytics course).
Example: If you withdraw from Turing College or your scholarship is terminated after two months from the beginning of your Data Science Program, then you will have to return a part of the scholarship equal to two monthly Installment Payments or 2/12 of the full price, which is roughly 800 Eur.