The wedge is used for alignment on specific types of FMC tubing hangers, with this particular design allowing for the alignment of multiple-string tubing hangers without external manipulation methods. Like all FMC tubing heads, the TC-WD-ET is of a straight-bore design, more economical to recondition after abandonment.
If you want to talk to an Instagram customer service representative on the phone, they can be reached toll-free at 1-650-543-4800. Again, though, some people have mentioned that this phone number simply goes to Facebook (Instagram's owner), and they say that they don't do over-the-phone support for Instagram.
If so, then you definitely need to download a useful free iOS app called instaDM which allows you to chat and send direct messages to any Instagram user. The app, which is also available on the web, allows you to search for the Instagram user to whom you wish to speak to. You can then send them messages and they can respond. You need to be a registered Instagram user yourself and you must sign in with your Instagram credentials. The creators of the app claim that 300,000 people downloaded and installed the app in the first 10 days of it becoming available in the App Store.