title: Extremely long delays with in-app purchases
body: <p>I'm using SwiftyStoreKit, and lately I'm experiencing extremely long delays with in-app purchases (like, several minutes long).</p>
  
  <p>Often I'm getting something like that:</p>
  
  <blockquote>
    <p>Receipt verification failed: networkError(Error
    Domain=NSURLErrorDomain Code=-1001 "The request timed out."
    UserInfo={NSUnderlyingError=0x1c0245700 {Error
    Domain=kCFErrorDomainCFNetwork Code=-1001 "(null)"
    UserInfo={_kCFStreamErrorCodeKey=-2102, _kCFStreamErrorDomainKey=4}},
    NSErrorFailingURLStringKey=<a href="https://sandbox.itunes.apple.com/verifyReceipt" rel="nofollow noreferrer">https://sandbox.itunes.apple.com/verifyReceipt</a>,
    NSErrorFailingURLKey=<a href="https://sandbox.itunes.apple.com/verifyReceipt" rel="nofollow noreferrer">https://sandbox.itunes.apple.com/verifyReceipt</a>,
    _kCFStreamErrorDomainKey=4, _kCFStreamErrorCodeKey=-2102, NSLocalizedDescription=The request timed out.})</p>
  </blockquote>
  
  <p>Obviously, recreating all this without SwiftyStoreKit is not a very easy task, so I want to ask beforehand — does anyone else experience something like that with sandbox/production, or if I do it from scratch there is a good chance that all these delays just dissapear?</p>