Start with the reason you might change. A cheaper plan, a better-fit bundle, keeping what you have, or paying for neither can all be valid outcomes.
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First question: do you need to switch?
Keep Spotify if it fits your real usage and migration effort would outweigh the benefit. If your free allowance is enough, a paid replacement may solve nothing.
Return to your bundle, mark your choice, and enter the expected new monthly cost for a switch or downgrade. Your actual spending remains your starting point.