Rakuten Card and Rakuten points on Securities, utilities and Ichiba promotions.

Hello, I'm using Rakuten Securities for investing and I figured it would be good to get the Rakuten credit card and rack up some extra points from my daily expenses, but I have some questions.

1) Other than the shops where I can scan the Rakuten Points Card, if I use the Rakuten Credit Card to pay, I also get 1% points cashback no matter the shop, right? With PayPay for example, there are some shops that don't award points, so I want to make sure I'm not losing points in a similar way here. Also, for utilities such as gas and internet, do I also get the points even if it's not from Rakuten provider?

2) About Rakuten Ichiba, I see that they run promotions from time to time with extra point multipliers, namely on days that end with 5, but even when I apply for this promotion, I don't see the extra points at checkout, am I getting something wrong here.

3) Finally, about Rakuten Securities, namely the NISA tsumitate, it seems I can pay up to 100k with Rakuten Card and 50k with Rakuten Cash. What's this Rakuten Cash? Do I get extra points doing tsumitate this way or something?

Thank you for hearing me. I also appreciate any other related tips.

by 3D_Neophyte